Brighton Downs Threshold Days by Year

4 fixed thresholds counted per year at Brighton Downs (ASN00037007): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brighton Downs Thresholds

Brighton Downs: days with 10 mm (0.39 in) or more of precipitation in 87 years, most in 1974 with 21.
Brighton Downs: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 1920 with 9.
Brighton Downs: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1917 with 3.
Brighton Downs: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1917 with 2.
4 fixed thresholds have at least one qualifying day at Brighton Downs.

Days with 10 mm (0.39 in) or more of precipitation

87 years with a qualifying day

Days per year at Brighton Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Brighton Downs
Year	Days	Decade average
1913	11	10.3
1914	6	10.3
1915	7	10.3
1916	16	10.3
1917	15	10.3
1919	7	10.3
1920	20	9.8
1921	20	9.8
1922	6	9.8
1923	5	9.8
1924	13	9.8
1925	4	9.8
1926	3	9.8
1929	7	9.8
1930	16	9
1931	12	9
1932	5	9
1933	5	9
1934	10	9
1935	5	9
1936	13	9
1937	5	9
1939	10	9
1940	9	8
1942	5	8
1943	6	8
1945	5	8
1946	7	8
1947	10	8
1948	6	8
1949	16	8
1950	20	10
1951	3	10
1953	11	10
1954	8	10
1955	11	10
1957	11	10
1959	6	10
1960	8	5.4
1961	5	5.4
1962	7	5.4
1963	7	5.4
1964	7	5.4
1965	4	5.4
1966	3	5.4
1967	3	5.4
1968	6	5.4
1969	4	5.4
1970	6	11.5
1971	5	11.5
1972	7	11.5
1973	12	11.5
1974	21	11.5
1975	12	11.5
1976	13	11.5
1977	14	11.5
1978	14	11.5
1979	11	11.5
1980	4	8
1981	9	8
1982	5	8
1983	10	8
1984	14	8
1985	8	8
1986	7	8
1987	6	8
1988	8	8
1989	9	8
1990	8	8.8
1991	5	8.8
1992	10	8.8
1993	9	8.8
1994	3	8.8
1995	7	8.8
1996	6	8.8
1997	12	8.8
1998	12	8.8
1999	16	8.8
2000	12	7.4
2001	8	7.4
2002	3	7.4
2003	5	7.4
2004	10	7.4
2005	6	7.4
2007	8	7.4
2010	18	18
2020	6	6

For each year, a bar from the first to the last day at Brighton Downs meeting 10 mm (0.39 in).

First to last qualifying date each year at Brighton Downs
Year	First date	Last date
1913	1913-02-06	1913-12-24
1914	1914-02-27	1914-12-25
1915	1915-02-16	1915-12-29
1916	1916-01-23	1916-12-31
1917	1917-01-02	1917-11-20
1919	1919-01-13	1919-05-19
1920	1920-01-12	1920-12-31
1921	1921-01-02	1921-12-25
1922	1922-01-29	1922-12-20
1923	1923-01-07	1923-12-23
1924	1924-01-05	1924-12-13
1925	1925-01-31	1925-11-18
1926	1926-03-24	1926-11-21
1929	1929-01-06	1929-12-02
1930	1930-01-23	1930-12-06
1931	1931-01-18	1931-12-05
1932	1932-03-20	1932-06-03
1933	1933-02-15	1933-12-05
1934	1934-01-26	1934-11-07
1935	1935-06-28	1935-10-21
1936	1936-01-12	1936-12-18
1937	1937-02-06	1937-12-01
1939	1939-01-23	1939-11-16
1940	1940-01-08	1940-04-13
1942	1942-05-26	1942-12-06
1943	1943-02-03	1943-12-19
1945	1945-02-18	1945-12-16
1946	1946-01-09	1946-12-26
1947	1947-01-30	1947-12-20
1948	1948-01-10	1948-12-28
1949	1949-01-26	1949-12-19
1950	1950-01-17	1950-12-19
1951	1951-01-03	1951-06-12
1953	1953-01-06	1953-08-28
1954	1954-01-24	1954-12-10
1955	1955-01-26	1955-10-19
1957	1957-01-09	1957-06-30
1959	1959-01-09	1959-08-25
1960	1960-01-21	1960-12-25
1961	1961-01-01	1961-12-18
1962	1962-01-14	1962-12-22
1963	1963-01-14	1963-10-28
1964	1964-04-02	1964-12-24
1965	1965-06-15	1965-12-19
1966	1966-01-06	1966-01-22
1967	1967-05-19	1967-06-09
1968	1968-01-15	1968-05-22
1969	1969-04-04	1969-12-24
1970	1970-01-31	1970-09-22
1971	1971-02-20	1971-11-25
1972	1972-01-11	1972-03-06
1973	1973-02-06	1973-12-27
1974	1974-01-01	1974-10-06
1975	1975-01-02	1975-12-28
1976	1976-01-13	1976-12-22
1977	1977-01-16	1977-12-19
1978	1978-01-05	1978-12-09
1979	1979-01-31	1979-10-24
1980	1980-01-04	1980-10-14
1981	1981-01-15	1981-11-28
1982	1982-01-23	1982-12-31
1983	1983-01-13	1983-12-30
1984	1984-01-08	1984-12-20
1985	1985-02-06	1985-11-26
1986	1986-02-03	1986-10-23
1987	1987-01-28	1987-12-28
1988	1988-03-31	1988-12-25
1989	1989-03-19	1989-12-02
1990	1990-02-20	1990-11-23
1991	1991-01-14	1991-02-10
1992	1992-01-26	1992-12-18
1993	1993-01-27	1993-12-23
1994	1994-03-03	1994-12-01
1995	1995-01-18	1995-12-30
1996	1996-01-02	1996-12-06
1997	1997-01-06	1997-12-20
1998	1998-01-12	1998-12-31
1999	1999-01-01	1999-12-27
2000	2000-02-13	2000-12-15
2001	2001-01-10	2001-12-16
2002	2002-01-06	2002-12-31
2003	2003-02-24	2003-12-04
2004	2004-01-15	2004-12-13
2005	2005-01-06	2005-10-21
2007	2007-01-08	2007-12-20
2010	2010-01-02	2010-12-19
2020	2020-01-29	2020-09-21

Every Fixed Threshold

Fixed thresholds at Brighton Downs
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	87	21	1974	6
25 mm (0.98 in): Days with 25 mm or more rain	80	9	1920	1
50 mm (1.97 in): Days with 50 mm or more rain	39	3	1917	1
100 mm (3.94 in): Days with 100 mm or more rain	6	2	1917	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

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Data for Brighton Downs threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Brighton Downs Threshold Days by Year

Key Facts for Brighton Downs Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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